A fish tank has 5 fishes. 1 of them have red fins and others have blue fins. How many fishes have blue fins?
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6 birds are sitting on a tree. 1 of them flew away. How many birds will be left on the tree?
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There are 8 cookies in a plate. 6 kids took one cookie each from the plate. How many cookies are left in the plate?
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Tracy invited 5 friends to her birthday party. Only 2 friends came to the party. How many friends didn't came to Tracy's party.
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My brother lost 2 pebbles out of the 6 pebbles he collected from the river. How many pebbles are left with my brother?
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